The Department of Conservation (DoC) is urging people to "stay off" frozen-over Hooker Lake in Aoraki Mount Cook, after visitors were seen walking on the lake, despite warning signs.
DoC Aoraki Mount Cook operations manager Sally Jones said DoC is "surprised to see visitors have risked their lives" by walking on the frozen lake.
Jones said groups have been seen on the frozen-over lake on webcam footage at Aoraki Mount Cook National Park on Monday and Tuesday, despite clear warning signs.
"While we‘ve put up warning signs to let people know about the risks, visitors are ultimately responsible for their own safety and decision-making in the outdoors."
Jones urged people to "stay off" Hooker Lake and other alpine lakes when they are frozen over "as the ice can be thin and could give way at any time".
"Visitors are putting their lives at risk by walking on the ice. If it did give way, they could drown or develop hypothermia in the extremely cold water. Variable temperatures at this time of year means conditions are changing quickly," said Jones.
Hooker Lake is a long way from any help and if something did happen, Jones warns by the time rescuers arrive it might be too late.
"When the lake isn’t frozen, people should stay out of the cold water, which is typically about 3 degrees. They should also stay off any icebergs in the lake as these are unstable and can tip unexpectedly."
Jones highlights a recent rescue operation where someone was helped from an iceberg near Tasman Lake.
"They not only risked their own life but also put rescuers at risk."
Jones said the national park is spectacular at this time of year, and we want suitably prepared visitors to come and enjoy this special part of Aotearoa.
"But we’re asking they take a minute to think and make good choices for their safety in the outdoors."
Jones urged anyone heading out at this time of year should check the weather and conditions and visit the DoC website to check for any track updates before they leave.
"If heading out, take plenty of warm and waterproof clothing and food, and assess whether they have the skills to be out in the conditions for the trip they plan to make," Jones said.
"If in any doubt, don’t go out, the park will still be there when the conditions improve."
